/*----------------------------------------------------------------------------
 * Copyright (c) Huawei Technologies Co., Ltd. 2021-2021. All rights reserved.
 * Description: LiteOS Kernel Test Semphore Demo Implementation
 * Author: Huawei LiteOS Team
 * Create: 2021-02-23
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 * 1. Redistributions of source code must retain the above copyright notice, this list of
 * conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
 * of conditions and the following disclaimer in the documentation and/or other materials
 * provided with the distribution.
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
 * to endorse or promote products derived from this software without specific prior written
 * permission.
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * --------------------------------------------------------------------------- */

#if LOS_KERNEL_DEBUG_SEMPHORE
#include "los_debug_sem.h"
#include "los_task.h"
#include "los_sem.h"

#ifdef __cplusplus
#if __cplusplus
extern "C" {
#endif /* __cplusplus */
#endif /* __cplusplus */

#define HI_TASK_PRIOR   4
#define LO_TASK_PRIOR   5
#define DELAY_INTERVAL1 500
#define DELAY_INTERVAL2 1000
#define DONE_FLAG       2

STATIC UINT32 g_demoTaskHiId;
STATIC UINT32 g_demoTaskLoId;
STATIC UINT32 g_demoSemId;
STATIC INT32 g_demoDoneFlag = 0;

STATIC VOID HiTaskEntry(VOID)
{
    UINT32 ret;
    INT32 i;

    printf("High priority task run.\n");
    for (i = 0; i < LOS_KERNEL_SEMPHORE_CYCLE_TIMES; i++) {
        ret = LOS_SemPend(g_demoSemId, LOS_KERNEL_SEMPHORE_OVERTIME);
        if (ret == LOS_OK) {
            printf("High priority task get the semphore successfully.\n");
            LOS_TaskDelay(DELAY_INTERVAL1);
            printf("High priority task release the semphore.\n");
            LOS_SemPost(g_demoSemId);
            LOS_TaskDelay(DELAY_INTERVAL1);
        } else {
            printf("High priority task get the semphore timeout.\n");
            LOS_TaskDelay(DELAY_INTERVAL2);
        }
    }

    g_demoDoneFlag++;
}

STATIC UINT32 LoTaskEntry(VOID)
{
    UINT32 ret;
    INT32 i;

    printf("Low priority task run.\n");
    for (i = 0; i < LOS_KERNEL_SEMPHORE_CYCLE_TIMES; i++) {
        ret = LOS_SemPend(g_demoSemId, LOS_KERNEL_SEMPHORE_OVERTIME);
        if (ret == LOS_OK) {
            printf("Low priority task get the semphore successfully.\n");
            LOS_TaskDelay(DELAY_INTERVAL1);
            printf("Low priority task release the semphore.\n");
            LOS_SemPost(g_demoSemId);
            LOS_TaskDelay(DELAY_INTERVAL1);
        } else {
            printf("Low priority task get the semphore timeout.\n");
            LOS_TaskDelay(DELAY_INTERVAL2);
        }
    }

    g_demoDoneFlag++;
    return LOS_OK;
}

UINT32 SemphoreDebug(VOID)
{
    UINT32 ret;
    TSK_INIT_PARAM_S taskInitParam;

    printf("\nKernel debug semphore start to run.\n");
    LOS_TaskLock();
    printf("Create the semphore.\n");
    ret = LOS_SemCreate(0, &g_demoSemId);
    if (ret != LOS_OK) {
        printf("Create the semphore failed.\n");
        return ret;
    }
    printf("Create the semphore successfully.\n");

    /* create task */
    ret = memset_s(&taskInitParam, sizeof(TSK_INIT_PARAM_S), 0, sizeof(TSK_INIT_PARAM_S));
    if (ret != EOK) {
        return ret;
    }
    taskInitParam.pfnTaskEntry = (TSK_ENTRY_FUNC)HiTaskEntry;
    taskInitParam.usTaskPrio = HI_TASK_PRIOR;
    taskInitParam.pcName = "DebugSemphoreHiTask";
    taskInitParam.uwStackSize = LOSCFG_BASE_CORE_TSK_DEFAULT_STACK_SIZE;
    taskInitParam.uwResved = LOS_TASK_STATUS_DETACHED;
    ret = LOS_TaskCreate(&g_demoTaskHiId, &taskInitParam);
    if (ret != LOS_OK) {
        printf("Create high priority task failed.\n");
        LOS_TaskUnlock();
        return LOS_NOK;
    }
    taskInitParam.pfnTaskEntry = (TSK_ENTRY_FUNC)LoTaskEntry;
    taskInitParam.usTaskPrio = LO_TASK_PRIOR;
    taskInitParam.pcName = "DebugSemphoreLoTask";
    taskInitParam.uwStackSize = LOSCFG_BASE_CORE_TSK_DEFAULT_STACK_SIZE;
    taskInitParam.uwResved = LOS_TASK_STATUS_DETACHED;
    ret = LOS_TaskCreate(&g_demoTaskLoId, &taskInitParam);
    if (ret != LOS_OK) {
        printf("Create low priority task failed.\n");
        if (LOS_OK != LOS_TaskDelete(g_demoTaskHiId)) {
            printf("Delete high priority task failed.\n");
        }
        LOS_TaskUnlock();
        return LOS_NOK;
    }
    LOS_TaskUnlock();

    LOS_TaskDelay(DELAY_INTERVAL2);
    printf("Release the semaphore twice.\n");
    LOS_SemPost(g_demoSemId);
    LOS_SemPost(g_demoSemId);

    while (g_demoDoneFlag != DONE_FLAG) {
        LOS_TaskDelay(DELAY_INTERVAL2);
    }
    LOS_SemDelete(g_demoSemId);
    printf("Delete the semaphore successfully.\n");

    return ret;
}
#endif

#ifdef __cplusplus
#if __cplusplus
}
#endif /* __cplusplus */
#endif /* __cplusplus */